I just finished playing all of them. I was really impressed. There were a few that used the jump and run or other kits - it would have been nice seeing those made from scratch. Even if they were buggy, the students would have learned more about programming trying it out for themselves.
I hope your students decide to develop these further. There were some great concepts in there - e.g. bees flying around flowers, girls collecting pants, running around the school, skiing, etc.